Commits
Prakash, Prashanth committed 35b68735988
ACPI / Processor: Drop setup_max_cpus check from acpi_processor_add() When maxcpus=X kernel argument is used, we parse the ACPI tables only for the first X cpus. The per-cpu ACPI data include the _PSD tables which gives information about related cpus. cppc_cpufreq and acpi-cpufreq parses the table once during init to deduce the related cpus. If a user brings a new cpu online after boot the related cpu data becomes incorrect. acpi_get_psd_map() in acpi_cppc.c returns error if it fails to find the parsed ACPI data for possible CPU resulting in cppc_cpufreq initialization failure. With this change we will probe all possible CPUs prior to cpufreq initialization, but will bring only setup_max_cpus online. nr_cpus kernel parameter can be used to restict even parsing per-cpu ACPI tables. Signed-off-by: Prashanth Prakash <pprakash@codeaurora.org> [ rjw: Subject ] Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>